Cutting tool and holder



A. GUTTLY.

CUTTING TOOL AND HOLDfifl.

APPLTCATIOH mm act. 22, 1921.

1,41 5,237, Patented May 9, 1922.

UNITED STATES PATENT OFFICE.

ALPHONSE GUTTLY,'0F WISCON STN RAPIDS, WISCONSIN,

comma r001. AND HOLDER.

Application filed October 22, 1921.

To all whomit may concern:

Be it known that I, ALPHONSF. GU'I'I'LY, a citizen of Switzerland, residing at Wisconsin Rapids, in the county of Wood and State of \Visconsin, have invented certain new and useful Improvements in Cutting Tools and Holders, of which the following is a specification.

This invention relates to improvements in tools for turning and planing metals, wood and the like but more particularly to such as are adapted for use in lathes, planers,

shapers and other machines of a similar nature.

The principal objects of my invention are to insure the accurate positioning of the tool relative to the Work and the maintenance of the tool in this position during the cutting o eration, to facilitate the sharpening of tiie tool, to provide an improved cutting edge, to permit positioning of the tool without the exercise of skill, to provide an improved bevel gauge, and in general to provide a new and improved cutting device.

The many other objects and advantages of my invent-ion will be better understood by reference tothe following specification when considered in connection with the accompanying drawing, illustrating a. selected embodlment thereof, in which Fig. 1 is a side elevation of my invention complete.

Fig. 2 is the same as Fig. 1. front elevation.

Fig. 3 is a detail side elevation of the upper holder member.

Fig. 4 is the same as tion. V

Fig. 5 is a detail side elevation of the lower holder member.

Fig. 6 is the same as Fig. 5. front elevation.

Fig. 7 is a plan view illustrating the method of using my improved tool and holder, and Fi 8 and 9 are respectively side and end e ovations of a gauge for use in sharpening m improved cutting tool.

Referring to t e drawing. the device comprises a holder 10 and a cutting tool 11. The cutting tool is preferably substantially cylindrical in form and provided with a. Straight groove 12 running longitudinally thereof from end to end. In the tool illustrated in the drawing this groove is substantially V-shaped in cross section but any other suitable form might be adopted. For con- Fig. 3, front eleva- Specification of Letters Patent.

Patented May 9, 1922.

Serial No. 509,547.

venience in use the tool 11 has been provided w1th-a cutting edge at each of its ends in order that it may be reversible; The forward edge is adapted to out upon the right side or face of the work and the rear end performs a similar operation on the left side or face. In Fig. 7 of the drawing, the tool 11 is illustrated in two different ositlons relative to the work 13. In eac of these pos tions t-hetool is operating on tit: rlght. Similar positions on the left ma be obtained by inverting the tool in the ho der. The tool holder comprises an upper memher 14, a lower member 15, and a clamping member lfi. The upper member 14 is provided with a tongue 17 extending longitudinally on its under face to fit within the groove 12 in the tool 11, the depressions on the sides of the tongue forming grooves to fit the upper portion of the tool. The forward edges of the upper member are preferably beveled and inclined rearwardly to prevent interference of the holder with the operation of the tool. 7

The lower member 15 is provided on its upper face with a longitudinal groove 18 to fit the i nder face of the tool 11. The forward end of the member 15 is preferably beveled and receding for the purpose described in connection with the correspondmg end of the upper member. A transverse groove 19 is preferably cut in the under face of the lower member to receive and fit the cross piece 20 of the clamping member 16.

The clampin member 16 comprises a band or strap 1 and a binding screw 22. The strap 21 envelope and fits closely about the upper and lower members and prevents relative lateral movement thereof. The binding screw acts upon the upper face of the upper holder member to cause the upper and lower members to tightly grip the tool 11 and to prevent relative longitudinal movement of these members. The cross piece 20 of the clamp 16 preferably fits within a groove 19 in the under face of the member 15 so that its under face is flush with'the base of this member.

The groove 12 not only positions the 'tool within the holder but provides the proper cutting lip throughout the entire length of the tool without the grinding of special li surfaces. This greatly simplifies the grin ing process and eliminates reforgin In order to further simplify the grinding or sharpening operation, I have provided a simple form of bevel gauge 25 which can he slipped over the forward end of the tool with the positioning pin or lug 26 in the groove 12. This gauge comprises ametal tube fitting the outside diameter of the tool and having its ends ground to' conform to the proper bevel facing of the. tool, The ends are designated R and .L to identify the right and left cutting ends of the too The positioning pin or lug 26 in the present embodiment is stamped from the body of the tube though it may be attached thereto or formed in any other suit-able manner. After the grinding of the tool, the gauge will indicate at once whether or not it has been ground to the proper bevel.

It will be seen that my improved holder enables the tool to be quickly and accurately positioned and insures retention ot the tool in this position throughout the operation. The form of the tool with the stralght longitudinal groove fgreatly facilitates the grinding or sharpening operation and eliminate-s the repositioning of the tool within the holder after each resharpeniug which is necessary with cylindrical tools having a spiral groove. My device is simple and strong in construction and can be quickly and easily assembled without the exercise of any skill] l illll aware that changes may he made in the form and arrangement of the various parts without departing from the spirit of my invention and I reserve the right to make all such. as fairly t'allwithin the scope of the following claims.

I. claim my invention:

l. in a device of the class described, a substantially round cutting tool provided with a straight groove extruding longitudinally thcreofl'and a holder. fitting about said tool and having a projection fitting within said groove.

2. In a device or the class described. a substantially round cutting tool provided with a straightgroove extending longitudinail thereof from end to end, and a holder for said tool comprising upper and lower mines? members shaped to lit said tool, one of said members being' provided with a projection fitting within said groove to position said tool relative to said holder.

3. In a device of the class described, a round cutting tool provided with a straight substantially V-shapecl groove extendm r loing itlnlinalb thereof from end to end, an a holder for said tool comprisin upper and lower members shaped to fit sand tool, and a clamp fitting about said members.

4. In n'dcvice of the class described, a cylindrical cuttingtool having a straight longitudinal.groove extending from end to end thereof and forming a permanent cutting lip. and a tool holder comprising upperand lower members channeled to fit saidtool, one of said members having aprojection fitting within said groove, and a clamp fitting about said holder.

In a device of the class described, a

evlindrical cutting tool having a straightlongitudinal groove extending fromrend to end thereof, and a tool holder fitting about said tool and having a longitudinal tongue fitting within said groove.

n a device of the class described, a cylindrical cutting tool having a straight longitudinal groove extendin from end to end thereof, and a tool holrer comprising upper and lower membeis channeled to fit said tool, and a clamping member fitting about said holder and positioned relative to one of said members.

7. A metal cutting tool comprising a substantially cylindrical bod having one of its ends beveled, and provided with a. straight groove extending longitudinally thereof from said beveled end, one edge of said groove forming a cutting lip. K

8. A metal cutting tool, comprising e'cylindrical body portion having one end beveled on opposite sides and being provided with a straight substantially. V-shaped groove extending longitudinally thereof from end to end, one edge of said groove Forming with the adjacent beveled face of the tool a cutting lip. ALPHONSE GUTTLY. 

